andersll wrote:That is all kinds of awesome. I wonder though - what does the progressive update feel like when you're actually using it with a Rift? Must be a slightly crazy experience

Yes, you need some kind of automatic Camera locking and/or user controlled locking. Another possible option would be to use some kind of heavy filtering of data coming from the head tracking device. However, heavy filtering can introduce some serious motion sickness problem and should probably be avoided.

Without true hard real-time path tracing, it is going to be hard to make any effective use of the tracking device.

However, even if used only as display device, the Oculus Rift is going to be a good product (especially if you factor the cost).

I would strongly suggest reprojecting pixels under rotation only. It will speed up convergence like crazy when used together with a helmet with lots of small head movements all the time. If you want to be tricky you can focus all the new pixels that comes into view. Will even give a smoother translation if you are using frame blending.